Let A = {1, 2, 3, 4, 5} and B = {2, 4}. What is A ∩ B
Answer:
{2,4}
Step-by-step explanation:
Use the graph below for this question:
What is the average rate of change from x = −3 to x = 3?
a) −1
b) 0
c) 1
d) 6
Use the graph below for this question:
What is the average rate of change from x = 2 to x = 3?
a) 2
b)3
c) 0
d) 5
Answer:6 0
Step-by-step explanation:
Can someone help me plz
Answer:
blahhfhdhdhhshshhdhdhdhdhdhshhshhshshdh
If m ACD=100 degree,then m ECB=[?]
Answer:
100
Step-by-step explanation:
They are the same.
Hope I helped!
Answer:
100°
Step-by-step explanation:
ACD=ECB=100°
[Vertical opposite angles are equal]
3/2:1/4 as a unit rate
Answer:
25
Step-by-step explanation:
(PLEASE HELP ASAP!!!)Micheal has five different stocks that he watches on a daily basis. The table shows the change in each stock price in dollars at the end of a trading day.
What is the correct order of the rational numbers in the table from least to greatest?
A) -1.5, 2.9, -1/2, 3 3/4, 4.6
B) -1/2, -1.5, 2.9, 3 3/4, 4.6
C) -1.5, -1/2, 2.9, 3 3/4, 4.6
D) 4.6, 3 3/4, 2.9, -1/2, -1.5
Answer:
C
Step-by-step explanation:
A denotes an mn matrix. Determine whether the statement is true or false. Justify your answer. The row space of AT is the same as the column space of A.
Answer: true
Step-by-step explanation:
For an m*n matrix, the column space of A will be a space formed by the lineal combination of all the columns of A.
column space = a1*c1 + a2*c2 + ...
where a1, a2, ... are scalars, and c1 is the vector of column 1.
Then we should write:
Column space = a1*(A₁₁, A₂₁, A₃₁, ...) + a2*(A₁₂, A₂₂, A₃₂, ...) + ...
Now, the transpose is defined as:
[At]₁₃ = A₃₁
Here i used the element with subindex 3 and 1, but is the same for every subindex.
Notice that if A is m*n, then [At] is n*m
Now, the row space of [At] will be, same as before.
Row space = b1*r1 + b2*r2 + ...
Where b1, b2, ... are scalars and the r's are the vector of each row.
= b1*( [At]₁₁ , [At]₁₂, [At]₁₃, ...) + b2*([At]₂₁, [At]₂₂, [At]₂₃, ...) + ...
Now we replace each term of the transpose by the associated element in the original matrix.
= b1*( A₁₁, A₂₁, A₃₁, ...) + b2*(A₂₁, A₂₂, ...) + ....
If we take:
b1 = a1, b2 = a2, b3 = a3, ...
We will have that the row space of [At] is the same as the column space of A.
a family rents a cottage for $79.95 a day for 7 days. about how much does the family pay for the cottage?
Answer:
$560
Step-by-step explanation:
Since the family rents a cottage for 7 days, 79.95 dollars each day, we multiply 79.95 by 7 and get 559.65. Since the question asks about how much does the family pay, we round 559.65 to get $560.
The function y=15x + 100 models the freight shipping charge of x pounds of cargo. What best describes the constant term of the function
Answer:
the constant is 15
Step-by-step explanation:
because it is constantly going up. the slope (15x) is what changes.
In a random survey, 35 out of 100 people were able to correctly answer the question asked. If 400 people are surveyed, about how many would be expected to answer the question correctly?
Step-by-step explanation:
In a Random survey 35 out of 100 people answered correctly.
100-35
=65
[tex] \frac{35}{65}(400) [/tex]
[tex] \frac{7}{13}(400) [/tex]
[tex] \frac{2800}{13} [/tex]
[tex]215.384[/tex]
I think this is the answer but I am not entirely sure so you can maybe verify from someone.
what is the meaning of the word indiced
Answer:
You may have mispelled the word and meant index, indiced means index
Step-by-step explanation:
. Simplify the following expression by combining like terms:
3a + 6ab + 9ab + 3(a + ab)
Answer:
6a+18ab
I think is correct
Answer:
6a+18ab
Step-by-step explanation:
hope this helps
The chart below contains the results of a survey in which students were asked about their cell phone plan.
Cell Phones Plans
Plan
Students
No cell phone
20
Voice only
14
Voice and texting
12
Voice, texting, and data
4
What percent of the students surveyed have a phone plan with texting?
16%
24%
32%
68%
If you get it right you get the crown brain thing
Answer:
It is option C.
Step-by-step explanation:
I did the test.
Answer:
it c
Step-by-step explanation:
i did the unit test hope this helps :)
Find the solutions to the equation below.
Check all that apply.
6x2 + 7x -5 = 0
A. x = 1/3
B. x = 5
c. x = -5/3
D. x = -1/3
E. x = 1/2
F. x = -2
Answer:
A and C
Step-by-step explanation:
Move all terms to the left side and set equal to zero. Then set each factor equal to zero
whatis the reciprocal of the number. 7/8
Answer:
8/7
Step-by-step explanation:
reciprocal is just the same number flipped
Answer:
8/7
Step-by-step explanation:
The reciprocal of a fraction is what you multiply with that fraction to get 1. Essentially, you flip the original fraction. The reciprocal of 7/8 is just flipping that to get 8/7. To check, 7/8 * 8/7 = 56/56 = 1
2. Determine the scale factor of a drawing if the scale is 1 inch = 4 feet.
Answer: Therefore the scale factor is 48 times.
Step-by-step explanation: Since the drawing is in inches, the scale will be 1/4
the scale is 1 inch to 4 FEET.
Convert feet to inches
1 inch to 48 inches
So the ratio is 1:48
Christian has a collection of 18 shark teeth. He identified them as 6 tiger shark teeth, 8 sand shark teeth, and the rest as bull shark teeth. What does the ratio 6:8 represent in this situation? What does the ratio 4:18 represent in this situation. Explain your reasoning. Include a model in your explanation. I
Answer:
Step-by-step explanation:
There are 18 teeth
6 tiger + 8 sand = 14
18-14 = 4
This means there are 4 bull shark teeth
4:18
4 bull shark teeth: 18 total shark teeth
Answer:
Step-by-step explanation: ratio 6:8 is tiger shark:sand shark
the ratio 4:18 is bull shark teeth:all the teath
Ihope this helps :D
I WILL MARK BRAINLIST
Question 9
Answer:
True
Step-by-step explanation:
p – 22 < 40 . could you give me the answer and the steps thank you!
Answer:
the answer is 62
Step-by-step explanation:
ok so all you do is add 22 instead of subtracting 22
FIRST RIGHT ANSWER GETS BRAINLIEST!!!!
A chimpanzee has a lifespan of approximately 50 years. The average lifespan of a Galapagos tortoise is at least 4 times that of a chimpanzee. Write an inequality to represent the lifespan of a Galapagos tortoise.
Answer:
w h a t
Step-by-step explanation:
Answer:
Step-by-step explanation:
chimpanzees, including the eating of colobus monkeys, by calling them (p3) ... times before the last 40,000-odd years, a time period which may ... metabolic limitation for humans of no more than 50% of calories to ... the evolutionary life span of our species, Homo sapiens, which is ... dead animals, from turtles to elephants.
Ms. Hamby gave a quiz. Two students' work and the answer key are shown. Ms. Hamby accepts equivalent answers in any form. Part A Based on Ms. Hamby's answer key, how many questions did Student A answer correctly? Explain your response.
Answer:
attach a picture
Step-by-step explanation:
A recipe for 12 bran muffins calls for one cup of flour the number of muffins that can be made varies directly with the amount of flour used there are two 2/3 cups of flour available how many muffins can be made
Answer: 8
Step-by-step explanation:
12 bran muffins in 1 Cup so for 2/3 it is
2/3*12 = 8
Determine the slope, y-intercept and equation of the graph below.
Answer:
Step-by-step explanation:
y intercept is 7.5
slope 1/2
y = 1/2x + 7.5
A 36-m-wide field is how many yards wide?
The field is yards wide.
(Type a whole number or a decimal. Round to three decimal places as needed.)
Answer 39.370
Step-by-step explanation:
1) Is the solution to -2.7 + x= -3.5 positive or
negative.
Answer:
positive because two negatives make a positive and the answer is not positive.
The solution of the expression -2.7 + x =-3.5 is -0.8 and is negative.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given expression is -2.7 + x= -3.5. The value of x will be calculated as,
-2.7 + x =-3.5
x = -3.5 + 2.7
x = -0.8
Therefore, the solution of the expression -2.7 + x =-3.5 is -0.8 and is negative.
To know more about an expression follow
https://brainly.com/question/25968875
#SPJ2
If the simple interest on $3000 for 3 years is $720 , then what is the interest rate?
Answer:
8%
Step-by-step explanation:
Starting Principal: $
3,000.00
Years:
3
Annual Interest Rate:
8
%
Results
Future Value, using...
Simple Interest: $
3,720.00
Annually Compounded Interest: $
3,779.14
The current temperature is 54 °F, convert the temperature to Celsius.
Answer:
b) 12.2222
Step-by-step explanation:
(54°F − 32) × 5/9 = 12.222°C
Answer:
The answer is
B ) 12.2
Step-by-step explanation:
(54°F − 32) × 5/9 = 12.222°C
I hope this helped you! If it did, please consider rating, pressing thanks, and giving my answer 'Brainliest.' Have a great day! :)
If Mrs.Burks spent 3.87 on grapez at kroger and bought 3.05 pounds,how much was each pound
Answer:
1.26885245902 or rounded to $1.27 per pound.
Step-by-step explanation:
you can just divide 3.87/3.05 to see how much each pound costed. if you needed to round to the nearest cent, you would round up to 1.27.... or if not, keep it at 1.26885245902.
then to check your work, you can just multiply (1.26885245902) by (3.05) to get the total amount she had spent.
What is the best estimate of 157 divided by 2=
What is the best estimate of 108 divided by 5=
Answer:
157 divided by 2 is 78.5 round that to get 70
108 divided by 5 is 21.6 round that to get 22
Does anyone understand this?
Answer:
no looks confusing
Step-by-step explanation:
